一、前言柴油机的活塞环或活塞裙与缸套的滑动面,由于既暴露在高温燃气中,又在有燃烧产物和异物的情况下承受高负荷,而且还在变化的滑动速度下工作,所以润滑条件极为苛刻,常导致各种润滑障碍。其中问题之一为发生拉伤或卡缸现象(以下把这两种现象总称为烧伤),为避免这一现象,必须根据发动机的用途等对防止烧伤留以足够的余量。但由于目前还不能确定有关耐烧伤性能的评价法,所以还没有到能定量地确定评价能否避免烧伤的地步。而且也未见到对烧 First, the foreword Diesel piston ring or piston skirt and liner sliding surface, due to exposure to high temperature gas, but also in the case of combustion products and foreign matter to withstand high load, but also at a sliding speed of change, so Extremely harsh lubrication conditions often result in a variety of lubrication disorders. One of the problems is the occurrence of strain or kinking (these two phenomena are collectively referred to as burns hereinafter). In order to avoid this, a sufficient margin must be reserved for the prevention of burn, depending on the use of the engine. However, since it is not possible to determine the method of evaluating the resistance to burn, it has not yet been possible to quantitatively determine whether the evaluation can avoid the burn. But also did not see the burning